Tire tread



FIG. 1 is a perspective view of a tire tread showing my new design it being understood that the pattern is repeated throughout the circumference thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front view thereof.

The broken line showing of the tire sidewall in the drawings is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread, as shown and described. 